Carrier 19QA - Manual (Page 13)

Water Separation — Water is only slightly soluble in
refrigerant. See Table 4. If additional water is present, it
will float on top of the refrigerant and can be easily re­
moved by the RMS unit.
Transfer the water contaminated refrigerant to the stor­
age tank using the procedures described in the Liquid Re­
frigerant Transfer section. If the refrigerant contamination
was caused by a chiller failure, the chiller must be repaired,
dehydrated, and vacuum broken with refrigerant. Use
24 in. Hg ( - 8 1 kPa) for CFC-113, 18 in. Hg ( - 6 1 kPa)
for HCFC-123, and 15 in. Hg ( - 5 1 kPa) for CFC-H to
avoid freezing the tubes in chiller before the cleaned liquid
refrigerant can be returned to the chiller. If the chiller is not
repaired, the clean refrigerant should be transferred to an­
other clean tank.
Connect the 12-ft refrigerant hose from the chiller or clean
storage tank vapor valve to the suction service valve on the
pump. See Fig. 14. Copper tubing is factory installed from
the pump to the oil separator. Connect a 6-ft refrigerant
hose from the discharge connection of the oil separator to
the vapor valve on the storage tank. Connect the 3-ft refrig­
erant hose and liquid level indicator from the liquid valve
of the storage tank to the filter drier canister. See Fig. 5.
Connect the remaining 6-ft refrigerant hose from the filter
drier canister to the chiller charging valve or the liquid valve,
if using a storage tank. Open all valves between the storage
tank and the chiller. Turn on the pump.
While the liquid refrigerant is being transferred into the
chiller or another storage tank, use the water separation glass
at the bottom of the tank to determine when the water/
refrigerant level is close to the liquid valve. See Fig. 4. Re­
duce the liquid flow rate as the water level approaches the
liquid valve. Close the liquid valve when the water/
refrigerant level is at the bottom of the water separation
glass to prevent water from entering the other storage tank.
To prevent the loss of remaining refrigerant, transfer the
water/refrigerant mixture into an open container. Skim the
water off the top of the refrigerant. Transfer the remaining
refrigerant into the storage tank.
FILTER DRIER
Refrigerant Hose
Direct Coupled Connection
Factory-Installed Copper Tubing
Fig. 14 — Water Separation
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